S 4th Ave, Mills, WY Property Records

Natrona County property records for 81 addresses on S 4th Ave, Mills, WY · Last verified October 2026

S 4th Ave Highlights

Properties 81
Median Sale Price $290,400
Deeds and Mortgages on File 104
Median Price per Sqft $200
Owner Occupied 53%
Median Annual Tax Bill $1,090
Median Year Built 1975
Median Ownership Tenure 4 years

Properties on S 4th Ave

Owner names and prior sale amounts shown locked below are available instantly with a free trial.

19 S 4th Ave

1 ba · 792 sqft · built 1979

Last Sale Tax Bill Prior Sale Owner Records
$652025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

20 S 4th Ave

1 ba · 1,200 sqft · built 1977

Last Sale Tax Bill Prior Sale Owner Records
$532025 Owner on Record AssessorUpdated Jul 2026

36 S 4th Ave

1 ba · 924 sqft · built 1973

Last Sale Tax Bill Prior Sale Owner Records
$462025 Owner on Record AssessorUpdated Jul 2026

51 S 4th Ave

3 bd · 2 ba · 1,352 sqft · built 1963 · 0.309 acres

Last Sale Tax Bill Prior Sale Owner Records
$352,450Mar 2025 $1,6062026 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

68 S 4th Ave

2.5 ba · 1,480 sqft · built 1925 · 0.254 acres

Last Sale Tax Bill Prior Sale Owner Records
$9532025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

84 S 4th Ave

1 ba · 1,248 sqft · built 1979

Last Sale Tax Bill Prior Sale Owner Records
$812025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

99 S 4th Ave

2 bd · 2 ba · 936 sqft · built 1917 · 0.309 acres

Last Sale Tax Bill Prior Sale Owner Records
$242,967Oct 2022 $1,7682026 Owner on Record Owner Occupied Assessor + 6 DocumentsUpdated Oct 2026

100 S 4th Ave

4 bd · 2 ba · 2,240 sqft · built 1998 · 0.309 acres

Last Sale Tax Bill Prior Sale Owner Records
$7512025 Owner on Record AssessorUpdated Jul 2026

115 S 4th Ave

2 bd · 1 ba · 868 sqft · built 1945 · 0.154 acres

Last Sale Tax Bill Prior Sale Owner Records
$153,713Jan 2022 $1,0122026 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

131 S 4th Ave

2 bd · 1 ba · 768 sqft · built 1945 · 0.154 acres

Last Sale Tax Bill Prior Sale Owner Records
$134,100Jan 2021 $7382025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

132 S 4th Ave

4 bd · 2 ba · 867 sqft · built 1945 · 0.154 acres

Last Sale Tax Bill Prior Sale Owner Records
$307,949Mar 2023 $1,1572025 Amount on Record Mar 2022 Owner on Record Owner Occupied Assessor + 4 DocumentsUpdated Aug 2026

147 S 4th Ave

1 ba · 1,280 sqft · built 1979

Last Sale Tax Bill Prior Sale Owner Records
$572025 Owner on Record AssessorUpdated Jul 2026

164 S 4th Ave

2 bd · 2 ba · 1,376 sqft · built 1962 · 0.216 acres

Last Sale Tax Bill Prior Sale Owner Records
—Sep 2013 $1,4982025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

195 S 4th Ave

2 bd · 1 ba · 768 sqft · built 1943 · 0.309 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,1432025 Owner on Record AssessorUpdated Jul 2026

196 S 4th Ave

3 bd · 2 ba · 1,056 sqft · built 1946 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
—Feb 2018 $1,3262025 Amount on Record May 2017 Owner on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

227 S 4th Ave

1 ba · 720 sqft · built 1959 · 0.154 acres

Last Sale Tax Bill Prior Sale Owner Records
$7852026 Owner on Record AssessorUpdated Oct 2026

228 S 4th Ave

1 ba · 818 sqft · built 1920 · 0.309 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,0902025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

243 S 4th Ave

2 bd · 1 ba · 720 sqft · built 1959 · 0.154 acres

Last Sale Tax Bill Prior Sale Owner Records
$212,224Oct 2025 $9962026 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

259 S 4th Ave

1 ba · 1,536 sqft · built 1973

Last Sale Tax Bill Prior Sale Owner Records
$862025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

260 S 4th Ave

1 ba · 938 sqft · built 1980

Last Sale Tax Bill Prior Sale Owner Records
$732025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

276 S 4th Ave

1 ba · 540 sqft · built 1961

Last Sale Tax Bill Prior Sale Owner Records
$662025 Owner on Record AssessorUpdated Jul 2026

292 S 4th Ave

1 bd · 1 ba · 980 sqft · built 1975

Last Sale Tax Bill Prior Sale Owner Records
—Sep 2024 $582025 Owner on Record AssessorUpdated Jul 2026

306 S 4th Ave

2 bd · 2 ba · 864 sqft · built 1964 · 0.128 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,0882025 Owner on Record Assessor + 1 DocumentUpdated Jul 2026

307 S 4th Ave

2 ba · 1,344 sqft · built 1954 · 0.409 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,1542025 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

308 S 4th Ave

2 ba · 2,400 sqft · built 2003

Last Sale Tax Bill Prior Sale Owner Records
$1792025 Owner on Record AssessorUpdated Jul 2026

311 S 4th Ave

1 ba · 672 sqft · built 1979

Last Sale Tax Bill Prior Sale Owner Records
$342025 Owner on Record AssessorUpdated Jul 2026

320 S 4th Ave

1 ba · 784 sqft · built 1978

Last Sale Tax Bill Prior Sale Owner Records
$412025 Owner on Record AssessorUpdated Jul 2026

323 S 4th Ave

4 bd · 2 ba · 1,440 sqft · built 1983 · 0.226 acres

Last Sale Tax Bill Prior Sale Owner Records
$213,216Nov 2025 $1,3622026 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

324 S 4th Ave

1 ba · 980 sqft · built 1976

Last Sale Tax Bill Prior Sale Owner Records
$482025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

336 S 4th Ave

1 ba · 672 sqft · built 1973

Last Sale Tax Bill Prior Sale Owner Records
$422025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

340 S 4th Ave

1 ba · 500 sqft · built 1964

Last Sale Tax Bill Prior Sale Owner Records
$332025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

356 S 4th Ave

1 ba · 924 sqft · built 1971

Last Sale Tax Bill Prior Sale Owner Records
$472025 Owner on Record AssessorUpdated Jul 2026

456 S 4th Ave

3 bd · 2 ba · 1,800 sqft · built 2013 · 0.4 acres

Last Sale Tax Bill Prior Sale Owner Records
—Dec 2012 $2,5122025 —Dec 2012 Owner on Record Owner Occupied AssessorUpdated Jul 2026

472 S 4th Ave

1 ba · 1,380 sqft · built 1950 · 0.789 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jan 2023 $2,3062022 Owner on Record Assessor + 1 DocumentUpdated Jul 2023

504 S 4th Ave

2 ba · 1,232 sqft · built 1994

Last Sale Tax Bill Prior Sale Owner Records
$1632025 Owner on Record AssessorUpdated Jul 2026

515 S 4th Ave

1 ba · 1,035 sqft · built 1960 · 0.066 acres

Last Sale Tax Bill Prior Sale Owner Records
$5402025 Owner on Record AssessorUpdated Jul 2026

517 S 4th Ave

1 ba · 980 sqft · built 1973

Last Sale Tax Bill Prior Sale Owner Records
$542025 Owner on Record AssessorUpdated Jul 2026

522 S 4th Ave

1 ba · 840 sqft · built 1953 · 0.128 acres

Last Sale Tax Bill Prior Sale Owner Records
$168,589Jul 2024 $9392025 Owner on Record Owner Occupied AssessorUpdated Aug 2026

532 S 4th Ave

0.149 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jan 2023 $1812022 Owner on Record AssessorUpdated Jul 2023

532 S 4th Ave

1 ba · 1,200 sqft · built 1977

Last Sale Tax Bill Prior Sale Owner Records
$632022 Owner on Record AssessorUpdated Jul 2023

554 S 4th Ave

2 bd · 2 ba · 1,254 sqft · built 1960 · 0.243 acres

Last Sale Tax Bill Prior Sale Owner Records
$6842025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

573 S 4th Ave

4 bd · 2.5 ba · 1,271 sqft · built 1962 · 0.345 acres

Last Sale Tax Bill Prior Sale Owner Records
—Aug 2025 $2,1562025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

580 S 4th Ave

3 bd · 2 ba · 1,698 sqft · built 2018 · 0.238 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,1902026 Owner on Record Owner Occupied AssessorUpdated Oct 2026

594 S 4th Ave

4 bd · 2 ba · 1,296 sqft · built 1998 · 0.238 acres

Last Sale Tax Bill Prior Sale Owner Records
—Apr 2018 $8742026 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

601 S 4th Ave

3 bd · 1.5 ba · 1,524 sqft · built 1962 · 0.301 acres

Last Sale Tax Bill Prior Sale Owner Records
$198,968Apr 2022 $1,1592026 —Feb 2022 Owner on Record Owner Occupied Assessor + 4 DocumentsUpdated Oct 2026

606 S 4th Ave

4 bd · 2 ba · 1,960 sqft · built 2000 · 0.257 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,1372026 Owner on Record AssessorUpdated Oct 2026

609 S 4th Ave

1 ba · 910 sqft · built 1974

Last Sale Tax Bill Prior Sale Owner Records
$322022 Owner on Record AssessorUpdated Jul 2023

610 S 4th Ave

1 ba · 980 sqft · built 1960 · 0.238 acres

Last Sale Tax Bill Prior Sale Owner Records
$7542026 Owner on Record Owner Occupied AssessorUpdated Oct 2026

611 1/2 S 4th Ave

1 ba · 980 sqft · built 1972

Last Sale Tax Bill Prior Sale Owner Records
$532025 Owner on Record AssessorUpdated Jul 2026

616 S 4th Ave

3 bd · 2 ba · 1,232 sqft · built 1960 · 0.257 acres

Last Sale Tax Bill Prior Sale Owner Records
$334,827Dec 2023 $1,8442025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

619 S 4th Ave

2 bd · 2 ba · 1,568 sqft · built 2007 · 0.301 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,7532025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

632 S 4th Ave

1 ba · 1,284 sqft · built 1960 · 0.295 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,3492026 Owner on Record Owner Occupied AssessorUpdated Oct 2026

650 S 4th Ave

2 bd · 1 ba · 1,418 sqft · built 1960 · 0.303 acres

Last Sale Tax Bill Prior Sale Owner Records
$8252026 Owner on Record AssessorUpdated Oct 2026

663 S 4th Ave

2 ba · 1,288 sqft · built 1958 · 0.261 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,1202026 Owner on Record AssessorUpdated Oct 2026

672 S 4th Ave

1 ba · 840 sqft · built 1970

Last Sale Tax Bill Prior Sale Owner Records
$482025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

687 S 4th Ave

3 bd · 2 ba · 1,230 sqft · built 1962 · 0.268 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,7792026 Owner on Record AssessorUpdated Oct 2026

702 S 4th Ave

2 bd · 1 ba · 891 sqft · built 1958 · 0.268 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,4642026 —Aug 2013 Owner on Record Assessor + 1 DocumentUpdated Oct 2026

705 S 4th Ave

1.5 ba · 1,198 sqft · built 1965 · 0.268 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,3512026 2 Owners on Record Assessor + 3 DocumentsUpdated Oct 2026

735 S 4th Ave

1 bd · 1 ba · 1,344 sqft · built 1978

Last Sale Tax Bill Prior Sale Owner Records
$512025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

750 S 4th Ave

1 ba · 936 sqft · built 1920 · 0.268 acres

Last Sale Tax Bill Prior Sale Owner Records
$3552026 Owner on Record AssessorUpdated Oct 2026

757 S 4th Ave

0.26 acres

Last Sale Tax Bill Prior Sale Owner Records
$32025 —Mar 2025 Owner on Record Assessor + 2 DocumentsUpdated Jul 2026

758 S 4th Ave

1 ba · 910 sqft · built 1976

Last Sale Tax Bill Prior Sale Owner Records
$502025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

871 S 4th Ave

5 bd · 3 ba · 1,075 sqft · built 2012 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$370,395Dec 2024 $1,9322025 Amount on Record Nov 2022 Owner on Record Assessor + 6 DocumentsUpdated Aug 2026

882 S 4th Ave

3 bd · 2 ba · 1,871 sqft · built 2014 · 0.173 acres

Last Sale Tax Bill Prior Sale Owner Records
—May 2014 $2,7442025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

883 S 4th Ave

3 bd · 2 ba · 1,160 sqft · built 2014 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$196,000Jan 2022 $1,9602026 —Aug 2021 Owner on Record Assessor + 3 DocumentsUpdated Oct 2026

894 S 4th Ave

3 bd · 2 ba · 1,871 sqft · built 2014 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$400,064Jun 2026 $2,6732025 —Jan 2020 Owner on Record Owner Occupied Assessor + 4 DocumentsUpdated Jul 2026

895 S 4th Ave

2 bd · 2 ba · 986 sqft · built 2014 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jul 2014 $1,3492025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

906 S 4th Ave

3 bd · 2 ba · 800 sqft · built 2013 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,9062025 Owner on Record Assessor + 1 DocumentUpdated Jul 2026

907 S 4th Ave

3 bd · 2 ba · 1,120 sqft · built 2014 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
—Feb 2018 $1,9902026 —Feb 2018 Owner on Record Assessor + 4 DocumentsUpdated Oct 2026

918 S 4th Ave

3 bd · 2 ba · 1,871 sqft · built 2014 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$295,000Mar 2021 $2,7262025 —Oct 2013 Owner on Record Assessor + 2 DocumentsUpdated Jul 2026

919 S 4th Ave

3 bd · 2.5 ba · 1,779 sqft · built 2014 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$352,055Aug 2024 $2,6152025 Amount on Record Oct 2020 Owner on Record Owner Occupied Assessor + 6 DocumentsUpdated Jul 2026

930 S 4th Ave

3 bd · 2 ba · 1,871 sqft · built 2014 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
—Sep 2018 $2,7682025 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

931 S 4th Ave

3 bd · 2 ba · 1,747 sqft · built 2014 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$146,300Aug 2024 $1,9432025 Amount on Record Oct 2023 Owner on Record Assessor + 7 DocumentsUpdated Jul 2026

942 S 4th Ave

3 bd · 2.5 ba · 1,374 sqft · built 2014 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$290,400Mar 2020 $1,4832025 —Dec 2019 Owner on Record Assessor + 7 DocumentsUpdated Jul 2026

943 S 4th Ave

2 bd · 1 ba · 780 sqft · built 2014 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
—Sep 2014 $1,2102025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

954 S 4th Ave

3 bd · 2 ba · 1,871 sqft · built 2014 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$372,400Feb 2022 $2,0512026 —Dec 2013 Owner on Record Assessor + 3 DocumentsUpdated Oct 2026

955 S 4th Ave

2 bd · 2 ba · 1,006 sqft · built 2014 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$410,251Dec 2025 $1,9292025 —Jul 2014 Owner on Record Owner Occupied Assessor + 6 DocumentsUpdated Jul 2026

966 S 4th Ave

3 bd · 2 ba · 1,871 sqft · built 2014 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jun 2024 $2,0612025 Amount on Record Mar 2021 Owner on Record Owner Occupied Assessor + 5 DocumentsUpdated Jul 2026

967 S 4th Ave

4 bd · 3.5 ba · 1,404 sqft · built 2013 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
—Dec 2019 $2,3142025 Owner on Record Owner Occupied Assessor + 5 DocumentsUpdated Jul 2026

978 S 4th Ave

3 bd · 2 ba · 1,871 sqft · built 2014 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
—Sep 2013 $2,7722025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

979 S 4th Ave

3 bd · 2 ba · 1,090 sqft · built 2013 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
—Nov 2019 $1,2252025 —Mar 2014 Owner on Record Assessor + 3 DocumentsUpdated Jul 2026

Property Records in Nearby Streets